Answer:
3.71*10^-6 M (molar).
Step-by-step explanation:
To find the [H+] of a solution given its pH, we can use the formula:
pH = -log[H+]
Rearranging this equation, we get:
[H+] = 10^(-pH)
Substituting pH = 5.43 into this equation, we get:
[H+] = 10^(-5.43)
[H+] ≈ 3.71*10^(-6) M
Therefore, the [H+] of the solution is approximately equal to 3.71*10^-6 M (molar).